[throw0101c]

> You don't need GPS to figure out the correction for this.

Perhaps not, but a lot of cameras already have it for geotagging purposes (EXIF), so why not use it:

* https://en.wikipedia.org/wiki/List_of_cameras_which_provide_...

* https://www.digitalcameraworld.com/buying-guides/best-camera...

[SideQuark]

Because location doesn't give orientation, which you need to know to get acceleration to know how to correct.

Simply using the accelerometers and gyro directly does give the info you want. GPS is useless.